Tuberculosis is more serious compared to pulmonary nodules. Tuberculosis is a chronic disease caused by Mycobacterium tuberculosis, which is infectious and can spread through bloodstream and involve many organs throughout the body, for example, it can cause intestinal tuberculosis, abdominal tuberculosis, and bone tuberculosis. Most cases of tuberculosis can be cured if treated with anti-tuberculosis therapy, which can lead to death if not treated aggressively. However, with the current problems of drug resistance and relapse with treatment, hemoptysis is the leading cause of death from TB. Pulmonary nodules are granulomatous diseases of the lungs caused by various causes, are benign lesions, and are not contagious. Patients also have no obvious symptoms, and most of them can heal naturally. The prognosis is generally good and does not require special treatment, and can be followed up and reviewed regularly. If there is no change, you can continue to observe, usually every 3-6 months to review. If the lung nodule increases significantly within a short period of time, there is a possibility of malignant transformation and surgical removal is an option.